If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-eco-iife --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile.js with this line of JavaScript:

grunt.loadNpmTasks('grunt-eco-iife');

This plugin was designed to work with Grunt 0.4.x. If you're still using grunt v0.3.x it's strongly recommended that you upgrade, but in case you can't please use v0.3.1.

This grunt plugin is basically a copy of grunt-eco. I just didn't need any JST features. I only compiled templates in the form of Javascript or Coffeescript. That is why it is so close to the original.